2 * Copyright (c) 2017 Thomas Pornin <pornin@bolet.org>
4 * Permission is hereby granted, free of charge, to any person obtaining
5 * a copy of this software and associated documentation files (the
6 * "Software"), to deal in the Software without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sublicense, and/or sell copies of the Software, and to
9 * permit persons to whom the Software is furnished to do so, subject to
10 * the following conditions:
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
27 static const unsigned char *
28 api_generator(int curve
, size_t *len
)
32 return br_ec_p256_m15
.generator(curve
, len
);
33 case BR_EC_curve25519
:
34 return br_ec_c25519_m15
.generator(curve
, len
);
36 return br_ec_prime_i15
.generator(curve
, len
);
40 static const unsigned char *
41 api_order(int curve
, size_t *len
)
45 return br_ec_p256_m15
.order(curve
, len
);
46 case BR_EC_curve25519
:
47 return br_ec_c25519_m15
.order(curve
, len
);
49 return br_ec_prime_i15
.order(curve
, len
);
54 api_xoff(int curve
, size_t *len
)
58 return br_ec_p256_m15
.xoff(curve
, len
);
59 case BR_EC_curve25519
:
60 return br_ec_c25519_m15
.xoff(curve
, len
);
62 return br_ec_prime_i15
.xoff(curve
, len
);
67 api_mul(unsigned char *G
, size_t Glen
,
68 const unsigned char *kb
, size_t kblen
, int curve
)
72 return br_ec_p256_m15
.mul(G
, Glen
, kb
, kblen
, curve
);
73 case BR_EC_curve25519
:
74 return br_ec_c25519_m15
.mul(G
, Glen
, kb
, kblen
, curve
);
76 return br_ec_prime_i15
.mul(G
, Glen
, kb
, kblen
, curve
);
81 api_mulgen(unsigned char *R
,
82 const unsigned char *x
, size_t xlen
, int curve
)
86 return br_ec_p256_m15
.mulgen(R
, x
, xlen
, curve
);
87 case BR_EC_curve25519
:
88 return br_ec_c25519_m15
.mulgen(R
, x
, xlen
, curve
);
90 return br_ec_prime_i15
.mulgen(R
, x
, xlen
, curve
);
95 api_muladd(unsigned char *A
, const unsigned char *B
, size_t len
,
96 const unsigned char *x
, size_t xlen
,
97 const unsigned char *y
, size_t ylen
, int curve
)
100 case BR_EC_secp256r1
:
101 return br_ec_p256_m15
.muladd(A
, B
, len
,
102 x
, xlen
, y
, ylen
, curve
);
103 case BR_EC_curve25519
:
104 return br_ec_c25519_m15
.muladd(A
, B
, len
,
105 x
, xlen
, y
, ylen
, curve
);
107 return br_ec_prime_i15
.muladd(A
, B
, len
,
108 x
, xlen
, y
, ylen
, curve
);
112 /* see bearssl_ec.h */
113 const br_ec_impl br_ec_all_m15
= {
114 (uint32_t)0x23800000,